Hi Vicki,
I've had Navelbine/Herceptin for 3 recurrences now, starting back in 2001. I always had trouble with my counts, and my onc would cut the Navelbine in half when my counts didn't come up high enough; by the next infusion I'd be able to receive a full dose. I did have to have Aranesp this last spring, to raise my red counts as I was really low for awhile. Nausea was kept in check with Zofran IV before infusion, then pills at home for a few days until the nausea abated. So yes, I think your "Navelbine Blues" sound pretty familiar. I can't say it gets better, one just learns to manage the side effects. Keep your nurses informed and they will be a great help in keeping you on a more or less even keel while you get through the 6 months.
Congratulations on being such a survivor! You're in good company here
<3 Lolly